JP2003191797A - Stand-up riding golf car - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance carrying capacity and visibility of golf equipment and improve operability by shortening an entire length of a vehicle. <P>SOLUTION: A stand-up riding golf car 1 in which a body 2 thereof has right and left front wheels 6 and rear wheels 8 can run while being automatically steered along a guide line laid on a predetermined route. It comprises; in a front part, a front body part B having a front cowling 21 for covering the front wheels 6 and a steering device 20 from an upper side; in a rear part, a rear body part C having a rear cowling 34 for covering a driving motor 33, a battery 30, and a controller 31 from an upper side; and a riding part A having a floor for a person to get on or off the car at a central part between the front body part B and the rear body part C. A golf equipment supporting member 100 for loading the golf equipment is provided on an upper surface of at least one of the cowlings 21, 34 of the front body part B and the rear body part C and seats 14 and 16 are provided at an end part on a vehicle center side at least in the other body part out of the rear body part B and the front body part C. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, a vehicle having left and right front wheels and a rear wheel, and performing automatic steering along a guide line laid on a predetermined route. The present invention relates to a standing golf car that can run while performing. 2. Description of the Related Art Conventionally, as a manually-operated golf car for standing riding, as described in, for example, Japanese Patent Application Laid-Open No. 5-178241, a golf tool is placed diagonally in front of and in front of a front cowling. Is located, but there is no seat. As a golf car that runs while sitting on a seat, for example, in Japanese Patent Application Laid-Open No. H8-164838, seats are arranged above a vehicle center end of a rear cowling and a center of a floor. Above the rear cowling and behind the seat, a carrier for placing golf tools is arranged. [0004] As described above, in a manually-operated golf car in a standing riding mode, the golf equipment can be visually recognized by the rider, but there is no seat and only one person can ride in the front-rear direction. , Transportation ability is low. [0005] On the other hand, a golf car running while sitting on a seat has a high carrying ability, but the golf equipment cannot be visually recognized by a rider, and since the seat is located at the center of the floor, the overall length of the golf car becomes longer. is there. SUMMARY OF THE INVENTION The present invention has been made in view of such a background, and is capable of improving the carrying ability, allowing the golf equipment to be visually recognized, and shortening the overall length of the vehicle, thereby improving the steering performance. It is intended to provide cars. [0007] In order to solve the above-mentioned problems and to achieve the object, the present invention is configured as follows. [0008] The invention according to claim 1 is directed to a "stand-alone golf car having a vehicle body having left and right front wheels and rear wheels, and capable of traveling while performing automatic steering along a guide line laid on a predetermined route. A front body portion having a front cowling for covering the front wheels and the steering device from above in the front; a rear body portion having a rear cowling for covering the drive motor, the battery and the control device from above in the rear; A riding part having a floor for a person to ride on the center part between the body part and the rear body part, wherein a golf tool is mounted on an upper surface of at least one cowling of the front body part and the rear body part; A golf tool support member to be installed is installed,
A standing golf car, wherein a seat is disposed at an end of at least the other of the rear body portion and the front body portion on the vehicle center side. ]. According to the first aspect of the present invention, there is provided a riding section having a floor for a person to ride on in the center between the front body section and the rear body section, and the rider is seated on a seat. It can monitor whether golf equipment has fallen off. When the seat is arranged above the end of the cowling on the vehicle center side, the overall length of the vehicle can be reduced. Furthermore, when seats are arranged on both sides of the riding section, the number of occupants can be increased and the overall length of the vehicle can be reduced. An embodiment of a standing golf car according to the present invention will be described below with reference to the drawings, but the present invention is not limited to this embodiment. FIG. 1 is a side view of a standing golf car, and FIG.
Is a plan view of a standing-ride golf car, FIG. 3 is a side view showing a configuration of a standing-ride golf car, FIG. 4 is a plan view showing a configuration of a standing-ride golf car, and FIG. FIG. 6 is a side view showing the configuration of the car, and FIG. 6 is a plan view showing the configuration of a standing-on golf car showing a state where three people are riding. The standing golf car 1 is a golf car that travels while performing automatic steering along a guide line laid on a predetermined route in a golf course or the like, and a front suspension mechanism is provided on the front side of the vehicle body 2. Left and right front wheels 6 are suspended by a rear suspension mechanism 7 on the rear side of the vehicle body 2. In the center of the vehicle body 2, there is provided a riding section A on which a floor 9 on which an occupant can stand is arranged. In the riding section A, poles 11 are erected at four front and rear left and right positions, a roof 12 is supported by the poles 11, and a transparent cowl 13 is provided in front of the riding section A. A front seat 14 and a front backrest 15 of a standing occupant are provided between the front poles 11, and a rear seat 16 and a rear backrest 17 are provided between the rear poles 11. Further, handrails 19 are provided between the left, right, front and rear poles 11 so as to be foldable, so that the occupant can move up and down from both left and right sides. The handrails 19 can be flipped up to ascend and descend along the poles 11, and when pushed down, extend in the horizontal direction from the poles 11 to the center of the vehicle, and put their hands on when riding. I have. When the rear seat 16 is located on the center side between the rear poles 11 in the front-rear direction, the headrest 11
0 is placed. In addition, by increasing the seat width so that two persons can ride on the left and right sides, it is possible to obtain a carrying capacity of four persons for automatic steering and three persons for manual steering. At the front of the riding section A, a steering device 20 is disposed, and a front body B covered by a front cowling 21 is provided. Further, a battery 30, a control device 31, a charging device 32, and a drive motor 33 are arranged at the rear of the riding section A, and a rear body C covered by a rear cowling 34 is provided. The standing golf car 1 is a vehicle that can be switched between automatic traveling and manual traveling.
The steering device 20 has a configuration in which a steering column 20b that allows a handle 20a for manual traveling to be attached and detached is provided at the front end in front of the boarding space of the boarding section A. In the manual running state, as shown in FIGS. 5 and 6, the handle 20a is attached and the occupant
1 and 4, during automatic driving, the handle 20a can be removed as shown in FIGS. 1 to 4, so that the boarding space of the boarding section A can be widened. An opening 23 that can be opened and closed by a cover 22 is provided behind the front cowling 21 in front of the boarding space of the boarding section A.
And the steering column 2 in the front cowling 21
0b is housed, and the tip of the steering column 20b faces the opening 23. By removing the cover 22, the handle 20a can be attached to the distal end of the steering column 20b. With the handle 20a removed, the cover 22 can be removed to prevent the distal end of the steering column 20b from being exposed. Does not interfere with the tip. An accelerator pedal 24 and a brake pedal 25 are accommodated in the front cowling 21, and the accelerator pedal 24 and the brake pedal 25 are arranged in front of the opening 23. By removing the cover 22, acceleration / deceleration operations and braking operations required for manual traveling can be performed. In addition, by applying the cover 22 with the handle 20a detached, unnecessary erroneous acceleration / deceleration operations and erroneous braking operations can be reliably prevented during automatic traveling. An operation panel 90 in the front cowling 21 is also provided.
Provided with a main switch 26, a switch 27 for switching between manual steering and automatic steering, and a shift lever 39a. The main switch 26, a switch 27 for switching between manual steering and automatic steering are arranged in front of the opening 23. I have. By removing the cover 22 and operating the main switch 26, the entire system can be started, and the cover 22 can be prevented from accidentally stopping the entire system during automatic driving. By removing the cover 22, the switch 27 for switching between manual steering and automatic steering can be switched between manual steering and automatic steering. The steering is switched to the manual steering, and the vehicle does not deviate from the guidance line and cannot travel. A running stop and running return switch 28 is arranged outside the front cowling 21 and near the boarding space. The travel stop and travel return switch 28 may be disposed on any of the poles 11 at four places on the left and right front and back,
At the time of automatic running, an emergency stop is performed, and the running can be returned again. When the main switch 26 is turned ON / OFF, the data in the RAM memory of the control device 31 is not saved without being saved, so there is a problem. However, in the case of the running stop and running return switch 28, the data immediately before that is saved. ,
Return to running is easy. At the lower front part of the vehicle body 2, left and right front wheels 6 are provided.
Obstacle detecting means 50 pointing forward is arranged in the middle area of the vehicle. The obstacle detecting means 50 includes a bumper 51
It is arranged at the rear and transmits ultrasonic waves downward and receives reflected waves from below. This obstacle detecting means 50
Detects that there is an obstacle in a predetermined range ahead in automatic steering driving, and the control device 31 controls the vehicle speed to be reduced and stopped based on the detection information of the obstacle. The obstacle detecting means 50 is protected by a bumper 51 at the front, so that the obstacle detecting means 50 can reliably detect and stop an obstacle on the traveling path, and furthermore, make sure that it does not come into contact with foreign matter. Can be prevented and durability is improved. Also, the obstacle detecting means 50 is attached to the vehicle body 2 which supports the front wheel 6 so that the front wheel 6 can be steered, and the obstacle detecting means 50 does not easily follow the vertical movement of the wheel 6, so that the obstacle can be reliably detected. is there. Further, the obstacle detecting means 50 is attached to the vehicle body 2 which supports the front wheel 6 so as to be steerable at each of the left and right ends in an intermediate region of the left and right front wheels 6, so that the obstacle detecting means 50 Since it is difficult to follow the up and down movement of 6, the obstacle can be reliably detected, and the obstacle can be detected over a wide area in front. In the rear body part C, a front side of a rear arm 35 constituting the rear suspension mechanism 7 is connected to the vehicle body 2 by a pivot shaft 36.
And the rear side of the rear arm 35 is connected to the rear of the vehicle body 2 by a shock absorber 37 at a position separated from the swing center. The axle 3 of the rear wheel 8 is attached to the rear arm 35.
8 is rotatably supported, and further includes a drive motor 33 and a transmission 39. Drive motor 33
Is controlled by the control device 31 to drive the axle 38 via the transmission 39. Drive motor 33 and transmission 39
A control device 31 and a charging device 32 are fixedly arranged at the rear of the vehicle body 2 at a position above the vehicle body 2. Rear cowling 3
An opening 40 is provided in the center of the upper part of the cover 4, and a removable cover 41 is provided in the opening 40. A charging device 32 having a terminal to which a commercial power supply can be connected is located below the opening 40. The charging device 32, the battery 30, and the battery 30
And the drive motor 33 are connected by flexible electric wires 42 and 43, respectively. By removing the cover 41 and opening the opening 40, the commercial power supply line can be easily connected to the charging device 32 to charge the battery 30, or the control device 3
1. Maintenance of the charging device 32 and the like is possible. In the front part of the rear body part C, a battery storage part 70 is disposed in the vehicle body 2.
The battery 30 is placed on the dish-shaped member 71. The rear cowling 34 in front of the battery storage 70 includes
An opening 73 is provided, and a detachable cover member 74 is disposed in the opening 73. The dish member 71 is opened by removing the cover member 74. When the dish-shaped member 71 is pulled out onto the floor 9 in front, the flexible electric wires 42 and 43 can be pulled out while extending from the bent state. The battery can be easily replaced by removing the battery. The dish-shaped member 71 has a rectangular shape that is long in the left-right direction and is configured to mount a plurality of batteries 30, so that the battery capacity can be increased and the traveling distance can be increased.
In addition, all the batteries 30 can be easily replaced. Further, since the battery 30 is supported by the vehicle body 2 instead of the rear arm 35, the unsprung load can be reduced. The battery 30 and the drive motor 33 are
Since it is connected by the flexible electric wire 43, the rear arm 3
Electric power can be supplied from the battery 30 to the drive motor 33 even when the motor 5 swings. The rear body portion C has a rear cowling 34.
Tool support member 1 on which a golf tool is placed
00 is installed. This golf tool support member 100
Is supported by the left and right rear poles 11 by stays 100a, and is supported by the vehicle body 2 by stays 100b, 100c, and 100d. In this embodiment, the golf tool supporting member 100 is mounted on the upper surface of the rear cowling 34 of the rear body portion C, but may be mounted on the upper surface of the front cowling 21 of the front body portion B. Alternatively, it may be placed on both the rear cowling 34 and the front cowling 21. In this embodiment, a front seat 14 and a rear seat 16 are disposed at the center of the rear body portion C and the front body portion B on the vehicle center side. It can monitor whether or not the tool has fallen off. Also,
When the golf tool support member 100 is placed on the upper surface of the front cowling 21 of the front body portion B, the rider can sit on the rear seat 16 and monitor whether the golf tool has dropped off. In this embodiment, the front seat 1
4 and the rear seat 16 are disposed at or above the vehicle body side end of the cowling of the front body portion B and the rear cowling 34, so that the overall length of the vehicle can be made compact and the number of occupants can be further reduced. Not only can it be increased, but also the overall length of the vehicle can be shortened. FIG. 7 is a block diagram showing a schematic configuration of a standing-ride golf car. The standing golf car 1 has a transmission 39, a power supply device D, and a drive circuit E for transmitting the drive force of the drive motor 33 to the rear wheels 8 as drive wheels.
Having. The power supply device D includes a CPU (central processing unit) 31
a and the power supply of the drive circuit E, and the drive circuit E
The drive motor 33 is driven based on the control of 1a. Connected to the transmission 39,
A shift lever 39a for switching the running direction between "forward" and "reverse", and a steering wheel 20 for steering the front wheels 6
a, accelerator pedal 24 and governor 24a for changing vehicle speed,
It has a mechanical brake mechanism such as a brake pedal 25 for applying a brake to the vehicle and drum brakes 25a to 25d. The standing golf car 1 has a control device 31 for performing control for automatic running, a steering driver 80a, a steering motor 80b, a brake motor driver 82a, a brake motor 82b, an electromagnetic brake 83, and other induction wire sensors. 84, fixed point sensor 85,
It has a rear-end collision prevention sensor 86, an obstacle detection unit 50, a sensor group such as a bumper switch 87, a switch group, and the like. The control device 31 includes a CPU 31a, a memory (not shown), a drive circuit E, and the like, and executes a predetermined control program to perform running control described later. When the steering relay 80c is turned on by the control device 31 during automatic driving, the steering driver 80a supplies a driving current corresponding to a steering instruction signal output from the control device 31 to the steering motor 80b, and turns the steering shaft 20c. It works. During manual traveling, the operation of the accelerator pedal 24 is detected by the accelerator pedal position sensor 24b, and the drive motor 33 is driven based on the operation amount of the accelerator pedal 24. On the other hand, at the time of automatic running, the output of the drive motor 33 is adjusted based on the set vehicle speed, not the operation amount of the accelerator pedal 24, so that the predetermined drive amount is obtained. When the brake relay 80d is turned on by the control device 31 during automatic traveling, the brake motor driver 82a supplies a drive current corresponding to the braking command value output from the control device 31 to the brake motor 82b. Thus, the brake motor 82b is connected to the gear 82c.
Drum brakes 25a to 25d provided on each of the front wheel 6 and the rear wheel 8 are driven via the switching mechanism 82d to apply braking to the vehicle. The brake pedal 24 is connected to the drum brakes 25a to 25d via the switching mechanism 82d even during automatic running, and can be manually braked. The electromagnetic brake 83 is a stop brake device that is turned on / off by the control device 31. As shown in the figure, the electromagnetic brake 83 is provided on a rotation shaft 33a that transmits the rotation of the drive motor 33 to the transmission 39. ing. The excitation of the electromagnetic brake 83 is turned on during traveling, and the braking of the rotating shaft 33a is not effective. On the other hand, when the excitation of the electromagnet is turned off immediately before the stop, the electromagnet is attracted to a fixed plate (not shown) by the reaction force of a spring (not shown), and the rotating shaft 33a is braked. The guide line sensor 84 is a T-shaped arm 84a which is attached to the front end of the vehicle so as to be rotatable in the horizontal direction.
And three places facing the ground. The guide line sensor 84 magnetically detects the embedded guide line (not shown) and outputs a detection signal corresponding to the distance from the guide line to the control device 31. The control device 31 performs steering control based on the output of the guide line sensor 84 so that the vehicle does not deviate from the course. The fixed point sensor 85 is attached to a predetermined position of the vehicle so as to face the ground, and magnetically detects a fixed point composed of a plurality of permanent magnets (not shown) embedded at predetermined intervals. For example, assuming that the fixed point is constituted by magnetic poles of three permanent magnets and the arrangement is an S pole, an N pole, and an N pole, the fixed point sensor 85 outputs a detection signal corresponding to the pattern of the arrangement of the magnetic poles to the control device. Output to 31.
The pattern of the arrangement of the magnetic poles is used as an instruction signal for performing traveling control such as stopping, starting, and speed of the vehicle in the control device 31. The rear-end collision prevention sensor 86 is provided at the front end of the vehicle, detects a radio wave transmitted by a vehicle traveling ahead, and outputs a detection signal corresponding to the intensity to the control device 31. The control device 31 determines whether or not the distance to the vehicle in front is equal to or less than a predetermined set value based on the output of the rear-end collision prevention sensor 86. Stop the vehicle to prevent it. The obstacle detecting means 50 is provided at each of two places on the left and right sides of the front end of the vehicle, and outputs a detection signal corresponding to the distance to an obstacle existing in front of the vehicle (this output is:
It increases as the distance decreases). Control device 31
Compares the output of each obstacle detecting means 50 with the first and second set values, respectively, and determines whether one of the outputs (distance to the obstacle) is equal to or greater than the first set value. When the vehicle is decelerated and is equal to or more than a second set value that is larger than the first set value, control is performed to reduce the vehicle speed and stop when detecting that there is an obstacle in a predetermined range ahead,
Thereby, contact with an obstacle is avoided. The bumper switches 87a and 87b are on / off switches provided at two places on the left and right sides of the gap between the front bumper 52 and the vehicle body. These bumper switches 87a and 87b are normally off, but are turned on when the front bumper 52 is pressed by any obstacle. When any one of the bumper switches 87a and 87b is turned on, the controller 9
Stop the vehicle. The forward switch 39b is connected to the shift lever 39
The switch is turned on / off in conjunction with the operation of the switch a. The switch is turned on when the shift lever 39a is set to the "forward" position, and turned off when the shift lever 39a is slightly operated from that position. In autonomous driving, the vehicle does not move backwards,
The shift lever 39a is always "forward" during automatic running.
It is assumed that it is in the position of. Therefore, if the shift lever 39a is slightly operated to the “neutral” side or the “reverse” side during automatic traveling, the control device 31
This is detected by turning off the forward switch 39b, and the vehicle is stopped smoothly. The reverse switch 39c is a switch that turns on and off in conjunction with the operation of the shift lever 39a, like the forward switch 39b. When the shift lever 39a is set to the "reverse" position, it turns on. Other than (neutral or forward)
Is turned off when operated. This retraction switch 39
When c is turned on, the alarm buzzer 39d is turned on, and an alarm sound is generated. The alarm buzzer 39d generates an alarm sound corresponding to each abnormality when any abnormality (such as failure of the guide line sensor 84) occurs in the vehicle even when the vehicle is not moving backward. In addition, as a group of sensors for detecting the running state of the vehicle, the transmission 39 is provided with a pair of vehicle speed sensors 39e for detecting the vehicle speed, and the drive motor 33 is provided with a rotation speed sensor 33d for detecting the motor rotation speed. ing. The operation panel 90 is provided in the vicinity of the driver's seat, and is provided with a main switch 26, a switch 27 for switching between manual steering and automatic steering, a shift lever 39a, and a run stop and run return switch 28. ing. Next, the configurations of the power supply device D, the drive circuit E, and the control device 31 will be described with reference to FIG. FIG. 10 is a block diagram illustrating a configuration of a power supply device, a drive circuit, and a control device. The power supply device D includes a battery 30, a charging device 3
2. It has a main relay 100 and a control battery 101. The drive circuit E includes a drive control circuit 200 and a current detection circuit 201, and the drive control circuit 200 drives the drive motor 33 based on the control of the CPU 31a. The charging device 32 has a 12V charging circuit 32a and a 72V charging circuit 32b, and uses a 12V charging circuit 32a for charging from a commercial power supply, and uses a 72V charging circuit 32b for rapid charging. The battery 30 and the charging device 32 are connected by flexible electric wires 42a and 42b. The battery 30 is connected to the drive control circuit 200 of the control device 31 and the CPU 31 via the main relay 100 via the flexible electric wire 43a.
a, and the current detection circuit 20 is connected by a flexible electric wire 43b.
1 The control battery 101 is connected to the charging device 32 via flexible electric wires 44a and 44b, connected to the CPU 31a via flexible electric wires 45a, and connected to the control device 31 via the main relay 100 via the flexible electric wires 45b. It is connected to the drive control circuit 200 and the CPU 31a.
The control battery 101 serves as a power source for the drive control circuit 200 and the CPU 31a under the control of the main relay 100. The charging device 32 is provided with a charging terminal 32c.
It is charged from a 200V commercial power supply. The battery 30 has a flexible electric wire 4
The quick charge receptacle 30a is connected via 6a and 46b. The quick-charging receptacle 30a is fixed to the vehicle body 2, and is connected to the quick-charging receptacle 30a by 72V.
Can be connected to a DC power supply for quick charging. As described above, according to the first aspect of the present invention, there is provided a riding section having a floor for a person to ride on in the center between the front body section and the rear body section. The rider can sit on the seat and monitor whether the golf equipment has fallen off. When the seat is arranged above the end of the cowling on the vehicle center side, the overall length of the vehicle can be reduced. Furthermore, when seats are arranged on both sides of the riding section, the number of occupants can be increased and the overall length of the vehicle can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a standing golf car. FIG. 2 is a plan view of a standing golf car. FIG. 3 is a side view showing a configuration of a standing golf car. FIG. 4 is a plan view showing a configuration of a standing golf car. FIG. 5 is a side view showing a configuration of a standing-ride golf car showing a state in which three people are riding; FIG. 6 is a plan view showing a configuration of a standing-ride golf car showing a state in which three people are riding; FIG. 7 is a block diagram illustrating a schematic configuration of a standing golf car. FIG. 8 is a block diagram illustrating a configuration of a power supply device, a drive circuit, and a control device. [Description of Signs] 1 Standing golf car 2 Body 6 Front wheel 8 Rear wheel 9 Floor 14 Front seat 16 Rear seat 20 Steering device 21 Front cowling 30 Battery 31 Control device 32 Charging device 33 Drive motor 34 Rear cowling 35 Rear arm 37 Buffer device 39 Transmission 100 Golf tool support member A Riding part B Front body part C Rear body part

Claims (1)

Claims: 1. A standing golf car having a left and right front wheel and a rear wheel on a vehicle body and capable of running while performing automatic steering along a guide line laid on a predetermined route. , A front body portion having a front cowling that covers the front wheels and the steering device from above, a rear body portion having a rear cowling that covers a drive motor, a battery, and a control device from above in the rear portion; and the front body portion. A riding part having a floor for a person to ride on the center part of the rear body part, and a golf tool is placed on an upper surface of at least one cowling of the front body part and the rear body part. A golf tool support member is provided, and a seat is disposed at an end of at least the other of the rear body portion and the front body portion on the vehicle center side. Take golf car.